Floor form and support



Dec. 15, 1931. E. L.. souLE. 1,836,197

FLOOR FORM AND SUPPORT A Filed OCT.. l0, 1928 2 Sheets-Sheet l 1 l -1;.nmuizc l .Y wm ,l1 ,I....LV.........................t.:... ..m l lA1.., f l u i. F

Dec. 15, 1931, E. 1 soULE l FLOOR FORM AND SUPPORT Filed ont. 1o, 1928 2Sheets-Sheet 2 NVENTOR.

BY V

ATTORNEYS.

' Patented Dec. 15, 1931 Enwmnn-SOUL, orfBEnxELEY, CALIFORNIA FLOORArompaI AND `surnom? y.lpplia'cifm1meri catererl 1o, 192s. seriairro.311507.

This invention relates to a floor form upon which concrete slabs arecast, and. especially to a supportfor thefloor form. v

In modernv buildings, whether steel or concrete, the floor structureusually CODSSS f modate all conditions.

rgreat and costly. However, due to great dif- `ferences in span andlengthl of iioor beams in dierent buildings, it is often necessary toresort to wooden forms as the steel: forms are not always sufficientlyadjustable Vto accom- The Object of the present inventionis to generallyimprove and simplify the construction and operation of steeliioor forms,to 'I provide a form and supporttherefor which is adjustable to takecare ofall variations in provi-dea steel formi which is adjustable bothlaterally and longitudinally so as to take ,care or' any change in spanbetween the beams, or

,v A any change in length, vand further to pro- -vide a rigid supportfor the steel forms which is adapted to be quickly attached tothe floorbeams when the forms are to be placed inpo* sition, and just as fquickly and readily re`v moved when the concrete has been poured"and'set, v

VThe invention is shownbyway of illustration in the accompanying,drawings, `in which:v v Y v v Fig. 1 isa vertical section of' a floorslab showing the position of the floor forms and the support withrelation tofthe beams in the floor, v l

, Fig. 2 showsthe manner'of vsupportingthe ioory forms with relationlto. a floor beam where ireprooiing is not required,

Fig. 3 shows the manner of supportingthe' ioor form where reprootingofthe {ioor beam is required,

Fig. 4' is a perspective .yiewQa supportj ing bar clamp,

span, and length between the floor beams, to

Fig. 5 isa perspective view of one end of the supporting bar. i Fig. 6isa perspective view showingthe manner of overlapping the floor formsfor longitudinal and lateral` adjustment. Referring to the drawings indetaili'par- Licularly to Fig; l, A andB indicate a pair of interspacedfloor beams, and C a reinforced concrete Hoor slab supported thereby.

The floor forms whichsupport the iioor slab" Y `7 when the concrete isbeing poured are indicated at 2, 3v and 4. Means for supportingthe floorforms are indicated'at 5. l The'means v employed will Vhereinafter bereferred to as the supporting bar. `It is T-shaped in con-V structionand may be as long as desired. It is provided with one'orl more clamps,`gen` erally indicated at D andE.V These clamps 5 and theyengage thelowerV flange 6 of the floorbeams Afand- B, thus Asecuring the bar areVslidably mounted on the supporting barV with relation tothe beams..Thejbar in turn forms 'afsupport forthe floor forms indicatedl at 2, 3and 4 and the concrete may thus be pouredto form the slabindicated'atjC., One ofthe clamps is illustratedin perspective, see'Fig.4. It consists of'fa' top section 7, ,whichl is exten-ded to form aclamping langeS, and an upper shoulder' 9.V Itisprovided with sidesectionsr1010 and these side sections are inturned, asat `l1, t0 `formchannels 12, which engage and support the clamp with relation ttothehead ofV the Tbar` 5l Pivotally mounted as at 13" Onfone side of theclamp is a. latch 14. This latch-is free to pivot at the point 13, andisv provided with` a counter-weight l5, whichv serves the func;v tion ofautomatically swingingv the latch 14 Y into engagement with the oppositeside o the.

beam, as shown in Fig. l, thefunction` ofthe latch being that ofretaining and securing the clamp as a whole against., endwisemoveflangenofvabeam. The forward face of f the latchis inclined, asindicated at 14a, this inclined' `face Vserving vthe, function of auto-Vmatically depressing the. latchL as it passes .overjthe-baseflangevoifthebea-1fr1`,. bu twhenit'- ,100i

passes the counter-'weight raisesthe 'latch and",

.menton the supporting bar when it has been brought. into engagementwith 4the lower .Y

engagement of the same, due to the action of;

the counter-weights 15.

When the clamps are engaged-the bars 5 may be secured if desired bytightening up set screws 17 mounted in the sides of the clamps. Thewhole supporting structure is thus rigidly secured to the floor beams.The Hoor forms 2, 3 and l are next placed in position as shown. Theseforms are laterally adjustable as they overlap each other, and they arealso longitudinally adjustable as they overlap each other end for end,as clearly shown in Fig. 6, that is, the form section indicated at 18,overlies the form section 19, and these may accordingly be adjustedlongitudinally in the direction of arrow Z2 to suit any variation, or tofit any change in length of beams. The lateral adjustment caused by theoverlap indicated by the arrow c takes care of any difference in sganbetween beams.

After the floor forms have been placed in position they may be securedby wires, such as indicated at 20, see Fig. 1. That is, the basesections of the floor forms are perforated as at 21, see Fig. 6 andwires may thus be passed through the perforations and around the bars 5,thus securing the form sections against movement once they have beenplaced. The endmost form section indicated at 2 engages the shoulder 9and it is thus secured between the shoulder and the side of the beam,and as such is also held against displacement, the end form shown at 4cbeing secured by wiring as indicated at 23.

The clamps D and E are only employed f `when the supporting bars 5 areattached to the lower flanges 6 of the beams, and especially when afloor beam of J section is employed, as shown in Fig 1. The supportingars may, however, be supported above the beams, for instance as shown inFig. 2. B

referring to Fig. 5 it will be noted that the end of the supporting baris provided with a foot extension 25, which is perforated as at K `26,and it should also be noted that it is provided with a notch, asindicated at 27. This notch is required when the supporting bars areplaced in the position shown 1n Fig. 2. A wire or rod hanger, such asshown at 28 Y is placed in the notch 27 and the opposite end 'is passedover the topflange of the I-beam,

as indicated at 29. The hanger thusfforms a rigid support for the bar 5and this in turn can then support the floor forms, for instance,

Vas indicated at'2a. This particular lform is provided at its base withan inturned flange 2b, and this may be clamped against movement by awasher 30, which is held in clamping engagement therewith by means of abolt and nut, such as shown at 3l.

The method of supporting the bars 5 and the floor forms illustrated inFig. 2 is only employed where fireprooling of the iioor beams is notrequired.

By referring to Fig. 3 the manner of supporting the lireproof beamstructure is shown. In such a structure, wooden forms are employed, asindicated at 33, these being supported in the usual manner by a cap 34Cand a post 35. The side of the form will, in this instance, provide asupport for the bar 5, and the floor form indicated at 3a. The footextension shown at 25 in Fig. 5 is required in this instance. The footextension is placed on a ledge 37 and nailed thereto, as indicated at38. When so supported the iioor forms indicated at 3a are placed inposition and they are there secured by a washer 30 and bolt and nut 31,as described in connection with Fig. 2.

From the foregoing it will be noted that the bar 5 may be employed inconjunction with different floor structures, the type shown in Fig. 1,and the type shown in Figs. 2 and 3. In Figs. 1 and 2 the supportingbars are secured directly to the floor beams, while in Fig. 3 thesupporting bars are supported by wooden forms or the like.

The advantages of the floor form and support described are;

1 They provide adjustability for different spans between trusses orbeams.

2. They are also adjustable for varying lengths of beams,

3. The bars 5, no matter how they are at- Llached, provide a rigidsupport for the floor orm,

4. The floor form and support when employed, as shown in Figs. l and2eliminates shoring.

5. When the supporting bars are attached to the beams, as shown in Fig.1 the clamps are automatically locked in position by merely sliding themalong the supporting bars until engagement is made with the base flangesof the beams.

6. The supporting bars are easily and quickly placed in position.

7. The supporting bars and ioor forms are of such size as to be easilyhandled when placing them in position or removing them.

8. By employing the bolts and nuts indicated at 31 at opposite ends ofthe supporting bars, the clamps D and E are secured against removal,thereby avoiding loss of parts.

9. The supporting bars may be of any length. They may cover a spanbetween two floor beams or they may be extended to cover two or morebeams if desired.

10. The clamps are provided with latches which automatically swing tolocking position with relation to the floor beams when the clamps areapplied and the latches mayV here be locked in their engaged positionbytightening the pivot bolts 13., The clamps as a who-le may in turn belocked to the vbars by means of the set screws 17.

11. The supporting bars may also beattached to the lloor beams withouttheclamps, as illustrated in Fig. 2, by merely notching the ends of thebars and supporting them by means of hangers as shown. f

12. By providing foot extensions 25 on the ends of the supporting bars,they may be attached to bearing walls or to molds as shown in Fig. 3. Y

13. Byreferring to Figs. 1 and 4', it will be noted that the sidesections of the clamp are extended beyond the latch T14 and they thuspresent a projection which may be struck by a hammer or like tool tocause release of 'the clamps if they should accidently become wedged orotherwise secured. In this connection it might also be stated that thelatch is provided with a lug 14a so that this may also be struck with ahammer or like tool to release it should it become wedged.

14. By referring to Figs. 1 and 4, it will be noted that a liberalspacing is formed between the side s-ectionsof the clamps and thesupporting flange 8, hence providing suii- Y 2. The combination with thebeams of a.

floor structure of a plurality of supporting bars disposed below thelower flanges of the beams; clamping members carried by the bars andlongitudinally adjustable thereon; said clamping members engaging thelower anges of the beams to secure the bars to the beams; a pivotallymounted latch 0n each clamp; means on each latch for automaticallyswinging it upwardly into locking engagement with relation to the flanes of the beams; and floor forms supported y the bars between the beams.

3. The. combination with the beams of a floor structure of a pluralityof supporting bars disposed below the lower flanges of the beams;clamping members carried by the cient space to take care of flanges ofvarying Y thickness of cross section.

15. Means such asV the washersrSO, and

clamping bolts 31 are employed Jfor securing the .end forms againstdisplacement and by perforating the base flanges of the intermediateform sections it is possible to wire the same to the supporting bars andthereby secure them against displacement. 1

While certain features of the present invention are more or lessspecifically described, I wish it understood that various changes may beresorted to within the scope of the appendedclaims similarly that thematerials and finishes of the several parts employed may be such as themanufacturer may decide, or varying conditions or uses may demand. v

Having thus describedmy invention, what I claim and desire to secure byLetters Patent is: Y'

1. The combination with the beams lof a A Hoor structure of a pluralityof supporting bars disposed below the lower flanges of the beams,clamping members carried by the bars and Vlongitudinally vadjustablethereon;

said clamping members engaging the lower flanges of the beams to securethe bars to the beams; locking means carried by the clamps and adaptedto automatically lock the clamps to the flanges of the beams; and lloorforms supported by the bars between'f'the beams. 4

